Snails are hermaphrodites, so the love potion goes both ways. Terrestrial slugs employ a "love dart," which they shoot into their mates. It's coated with a substance that helps sperm to survive. Gives a whole new twist to "Bad Romance."

What's the big deal about studying these old cats? Researchers hope that understanding how they responded to environmental change will help us understand how today's big cats will respond to changes in the future.

3. Look to the moon for your next potential home. If your Earthly abode is still feeling the effects of the housing bubble, consider some property that's truly out of this world. Robert Bigelow of Bigelow Aerospace says he will reach out to the Federal Aviation Administration to allow property rights for mining on the moon.

The animal, native to Laos and Vietnam, was sighted by camera trap, but the scientists are also working on an interesting way to figure out the population of an endangered species: by looking at the contents of leech blood consumption. Here's hoping the endangered saola can survive.